Cancel in-progress runs on new pushes

Author: p-r-a-v-i-n

.github/workflows/test.yml

@@ -11,6 +11,10 @@ on:
     # Run weekly on Saturday
     - cron: '37 3 * * SAT'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: read